diff --git a/takway/clients/web_socket_client_utils.py b/takway/clients/web_socket_client_utils.py
index 39a90d1..3ac5f4e 100644
--- a/takway/clients/web_socket_client_utils.py
+++ b/takway/clients/web_socket_client_utils.py
@@ -28,12 +28,14 @@ from takway.audio_utils import AudioPlayer
 
 
 def start_status_light(hardware, board):
+    print(f"start status light running.")
     if board == 'orangepi':
         for i in range(2):
             hardware.set_led_on("green")
             time.sleep(0.5)
             hardware.set_led_off("green")
             time.sleep(0.5)
+            print(f"led {i} on")
 
 
 class WebSocketClinet: